Detective Dalton is all confused about the ******.

Mr. Smith's head was bludgeoned with a heavy object
the impact reveals the vengeance of the killer
Bill the Butler had before closing for the night
heard the couple quarreling over something
Junior Smith was having a night out with his fiancée
and Daisy the daughter had retired to bed early
for she was to set out for an excursion early next day
Mary the maid had taken her leave by the evening
to attend to her husband ailing for some time.

Dalton has no clue about the ****** weapon
nor any lead to point to the possible suspect
but for a scribble on the page of an old diary
found neatly folded beside the victim's body
that reads as follows:

behind the humble mask is a ***** man
time and again he has ***** a beautiful soul
all just for the pleasure of his flesh
mauled her with his ugly tooth and claw
constantly used her to feed his lust
lost the right to live this man
and he deserves his place in hell
a mighty blow to his head
will for sure end this monster
will do that with my hand
and see his blood oozing out
to recompense for the sin
he forced on her.

The murderer has kept the name hidden in the letters,
Detective Dalton has only to find out.